Crucial RAM 64GB Kit (2x32GB) DDR4 2666 MHz CL19 Memory for Mac CT2K32G4S266M

I followed others feedback along with apples instructions and the memory worked on my first attempt. I have a 27in. 2017 iMac, left the original memory in the existing slots (2&4) and put the new 16gb sticks into the open slots (1&3). Worked like a charm. The one side effect was that my external monitor was no longer being recognized. I restarted the computer and reset the p-ram. Unplugged and re inserted the external monitor cable and voila.

Installed it on my HP Omen Laptop. Machine took the RAM and ran with it. no issues.

Works well and as expected.

Easy to install following simple instructions. Works just great!

I have found it almost impossible to find specific details about compatible ram for my imac 27 all in one.

Very quick delivery, easy to install and working perfectly. Move the 2 4gb apple to slot 1 and 2, and install this in slot 3 and 4 and done. Very happy! 100% recommended.

Royal pain to install (not the memorys fault), but can confirm that a pair of 16GB single rank work great on my Retina 4K, 21.5-inch, 2017 iMac, not just the 27 they are advertised for, which has the nice little door on the back.

I bought a late 2018 Mac Mini on sale for a great price. Apple charges premium $ to upgrade the RAM so I bought a version with standard 8GB RAM. The Mini worked great as it was, but I use it regularly for some things that benefit from more RAM. This SODIMM is built to match Apple specs and was a great value and made a noticeable difference in daily use of the Mini. Its performance scores in benchmarking apps were already good, but adding this RAM moved its scores up nicely. The Mini is harder to upgrade than a laptop that has an access panel for RAM, but as long as you watch one of the many instructional videos available online, its very manageable. Just be sure to educate yourself before attempting. As far as the RAM goes, great choice and upgrade.

Excellent! Work perfectly with my iMac.

Easy to install. works great